Pardon t



(No Model.)

P. T. PERKINS.

SEA 000K.

Patented Apr. 21, 1896.

I Zn 1i f 72 I I I r 1/ I Q i I LII WITNESSES INVENTOR ATTORNEY PARDONT. PERKINS, OF OS'WEGO, NE? YORK, ASSIGN OR OF SEVENTEEN THIRTY-SECONDSTO THOMSON KINGSFORD, OF SAME PLACE.

SEA-COCK.

SPECIFICATION forming part of Letters Patent No. 558,702, dated April21, 1896.

Application filed October 25,1895. Serial No. 566,931. (No model.)

T at whom it may concern:

Be it known that I, PARDON T. PERKINS,

of Oswego, in the county of Oswego, in the State of New York, haveinvented new and useful Improvements in Sea-Cocks, of which thefollowing, taken in connection with the accompanying drawing, is a full,clear, and exact description.

This invention is a specific improvement 011 the sea-cock shown in myprior application for patent, Serial N 0. 546,504, filed April 20, 1895.

The objects of my present invention are to permit the upper section ofthe barrel or case I 5 of the sea-cock to be removed from the lowersection thereof when required for repairs or other purposes withoutdestroying the utility of the sea-cock while in such dismemberedcondition.

The object of the invention is also to obviate the necessity of fittinginto the opening in the bottom or side of the vessel that portion of thesea-cock which is provided with the primary inlet-valve, and thusgreatly facilitate the attachment of the sea-cock to the vessel; and theobject of the invention, furthermore, is to provide the sea-cock withconvenient and efficient means for clearing the water-inlet strainer incaseit becomes clogged by grass or other substances lodged on theexterior thereof; and to that end the invention consists in the improvedconstruction and combination of parts hereinafter described and claimed.

3 5 The annexed drawing represents a vertical transverse section of asea-cock embodying my invention.

A and A represent, respectively, the lower and upper sections of thebarrel or case of the sea-cock. The lower section A is firmly bolted toeither the side or bottom 0 of the interior of the vessel, which isprovided with an opening 0 for the passage of water from the exterior ofthe vessel to the interior of the aforesaid case through the bottomthereof. In the lower end of the lower section A and above the aforesaidopening in the vessel is secured the metal ring it, which is providedwith the valve-seat h for the primary or inlet valve b. By the aforesaidlocation of the ring 70 in relation to the opening 0 the ne cessity offitting said ring into the opening is obviated, and thus the attachmentof the seacock to the vessel is materially facilitated.

A strainer j spans the inlet-opening to strain 5 5 the water enteringthe case. To the sides of the lower section A are connected thewastecock Z and the pipe 19, which latter is extended to a reservoir Rfor oil or other suitable incongealable fluid, and is provided with astop-cock p, as shown in my prior application for patent hereinbeforementioned.

B is a skeleton diaphragm, which rests with its rim 1; on the outwardflange t, formed on the top of the lower sectionA and is fastenedthereto by means of bolts on, the heads of which are countersunk in therim i, so as to be flush with the top of said rim. This diaphragm isformed with an annular valve-seat c, surrounding a water-passage, andwith the vertical screw-threaded central eye a, in which works thescrew-threaded portion of the stem 6 of the primary inlet-valve b. vUpon the rim t" of the diaphragm B is seated another skeleton diaphragmC, the central or main portion of which rises some distance from thediaphragm B, and is formed with a vertical screw threaded central eye 0,in which works the screw-threaded portion of the tubular stem (1 of thevalve (Z, which is fitted to the seat 0. Said stem passes through astuffing-box e on top of the case and has extending through it the stemb of the lower or primary valve 1). To the upper ends of the valve-stemsd and Z) are attached, respectively, the hand-wheels 0 and r, by whichto turn said stems for setting the valves in either their closed or openpositions, as may be required.

A stufling-box f 011 the upper end of the tubular valve-stem d preventsthe escape of water between the two stems. The upper section A isprovided with the water-outlet pipes or service-pipes I and P, which ina steam vessel are connected,respectively,to the force- 5 pump and tothe condenser or to the feedwater pipe of the boiler to supply waterthereto, according to the style of engine used in the vessel.

In order to allow the sea-cock to be used for the aforesaid purposewhile the upper case-section A may be removed for repairs or otherpurposes, I connect to the lower section A the auxiliary water-outletpipe D, which is provided with a threeway cock g and branch pipes g g,extending therefrom and leading to the different parts of the engine orboiler requiring the supply of water. In lieu of this single auxiliarypipe D with its three-way cook a plurality of pipes may be connected tothe lower case-section A and provided with suitable stop-cocks.

To allow the upper section A to be removed from the lower sectionwithout interfering with the operations of opening and closing either ofthe valves 1) and cl, I connect the upper diaphragm O to the lowersection A, independently of the upper section A, preferably by means ofbolts a, each of which is formed at or near the center of its lengthwith a suitable head a, by which the bolt receives a firm hold on therim of the diaphragm O. Said central head may be made cylindrical andscrew-threaded and inserted into a correspondingly screw-threaded eye inthe rim of the diaphragm, as shown. The smaller end portions of the boltare also screw-threaded and pass through the flanges of the upper andlower case-sections A A and are provided with nuts '0 on theirprotruding ends.

It will be observed that by removing the nuts on the upper ends of thebolts u the upper section A can be removed from the lower section A,while the heads a of the bolts to securely retain the diaphragm O on thelower section A.

Vhen it is desired to use the sea-cock while the upper section isdismounted, the inletvalve 1) is to be raised from its seat It and thethree-way cock g of the auxiliary outlet-pipe D is to be turned to allowthe water to pass from the lower section A to the place where the wateris to be utilized. In order to allow the strainer j to be cleaned fromgrass or other substances that may have become lodged on the exterior ofsaid strainer and tend to clog the same, I provide the lowercase-section A with a suitable inlet for steam under pressure. Thissteam-inlet is readily obtained by connecting to the pipe D, between thethreeway cock g and section A, a steam-pipe a, which communicates withthe steam-space of a boiler (not shown) and is provided with a stop-cocka, by which to control the flow of steam to the ease-section A. Thepressure of the steam admitted to said case-section forces theobstructions from the exterior of the strainer j. In admitting the steamto the case-section A the three-way cock g, stopcock 13, valve cl,waste-cock Z, and stop-cock p are to be closed and the lower or primarywater-inlet valve 1) is to be opened to allow the steam to be forcedthrough the strainer.

At the closing of navigation, when the vessel is to be laid up and thesea-cock is in its normal condition, the lower or primary valve b,three-way cock g, and steam-cock a are to be closed and the upper valvecl and the waste-cock l are to be opened and the stuffing-box f to beloosened to give air-vent to the interior of the case and allow theentrapped water to escape through the wastecock Z. Then the upper valved and the waste-cock are to be closed and the stop-cock p to be openedto allow the oil to enter the case and form an incongealable seal overthe primary valve h. In the latter operation the air displaced by theoil escapes through the loosened stuffing-box f.

hat I claim as my invention is- 1. The combination with a sea-cock caseprovided with a water-inlet valve, a strainer spanning theinlet-opening, and means for opening and closing said valve, asteam-i11- duction pipe connected to said case to admit thereto steamunder pressure for clearing the strainer as set forth.

2. A sea-cock composed of a case formed of sections detachably united, aprimary waterinlet valve in one section, water-outlet pipes connected tothe other section, a valve between the two sections, and an auxiliarywater-outlet connected to the case between the two valves to receivewater through one section of the case independent of the other sectionthereof.

3. The improved sea-cock composed of a case formed of an upper and alower section detachably united and provided with a water-inlet valve atthe base of the lower section,wateroutlets in the upper section, a valvesustained on the lower section independently of the upper section andcontrolling the flow of water to v the latter section, an auxiliarywater-outlet connected to the lower section separate from the outlets inthe upper section, and a valve for controlling said auxiliary outlet asset forth.

at. The combination of the case composed of an end section provided witha water-inlet valve at the base, two skeleton diaphragms secured to thetop of said section and each provided with a screw-threaded eye in itscenter and the lower diaphragm provided with a valve-seat, avalve forsaid seat provided with a screw-threaded tubular stem passing throughthe eye of the upper diaphragm and through the top of the case,ascrew-threaded stem attached to the aforesaid water-inlet valve andpassing through the eye of the lower diaphragm and through the aforesaidtubular stem, a case-section over the upper diaphragm and detachablysecured to the lower case-section and separate water-outlets connectedto the respective sections as set forth.

5. In combination with the lower case-section, A, and diaphragm 13,secured to the top thereof, the diaphragm, C mounted on the rim of thediaphragm, B, the case-section A mounted on the rim of the diaphragm, O,and bolts a secured at the central portions of their lengths to the rimof the latter diaphragm and having their end portions passing throughthe rim of the diaphragm, B, and flanges of the case-sections andprovided with nuts on opposite ends as set forth and shown.

G. The combination with the detachablyunited case-sections A A providedWith the valves 2) d, and having outlets P, P, connected to the uppersection, the auxiliary outlet-pipe D connected to the lower section andprovided With a valve for controlling the passage of Water through saidpipe, and the stea1n-induction pipe it connected to the pipe D betweenthe valve thereof and the case and provided with a stop-cock as and forthe pur- IO pose set forth.

In testimony whereof I have hereunto signed my name this 14th day ofOctober,

PARDON T. PERKINS. Witnesses:

P. G. M. TRIBE, CHAS. A. BENTLEY.

